Another line of prior work adds regularization to the model training process [1]}, [2]}, [3]}, [4]}, [5]}.
Some of these methods specify which parts of the image should not be relevant to the model's prediction [1]}, [2]}.
Other methods encourage the model's predictions to be consistent across counterfactual versions of the image [3]}, [4]}.
All of these methods could be used in conjunction with SPIRE.
